US Bridges

C30 190th ST over Plymouth Creek

Good

Plymouth County, Iowa · 9244190110 · Structure no. 000000000274401

Built
2020
5 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
93 ft
1 main span
Daily traffic
789
2021 count
Owner
County
County Highway Agency

About this bridge

C30 190th ST over Plymouth Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying C30 190th ST over Plymouth Creek in Plymouth County, Iowa. It was built in 2020, so it is 5 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 789 vehicles a day, roughly 8% of them trucks, projected to reach 789 by 2044. The structure is 93 ft (28.3 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesC30 190th ST
CrossesPlymouth Creek
Location9244190110
RouteCounty Highway 0
StateIowa
Coordinates42.77921, -96.0877
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length93 ft (28.3 m)
Longest span90 ft (27.4 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic789 (2021)
Projected traffic789 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C30 190th ST over Plymouth Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is C30 190th ST over Plymouth Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does C30 190th ST over Plymouth Creek carry?

About 789 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is C30 190th ST over Plymouth Creek?

The structure is 93 ft (28.3 m) long with a longest span of 90 ft (27.4 m) and a deck 33 ft wide.

Who owns C30 190th ST over Plymouth Creek?

It is owned by the County Highway Agency.